Adjustable shelf or bracket



(No Model.)

0. B; BUCK. ADJUSTABLE SHELF 0R BRACKET. No. 439,636. Patented Nov. 4, 1890.

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CHARLES E. BUCK, OF BOSTON, MASSACHUSETTS.

ADJUSTABLE SHELF OR BRACKET.

SPECIFICATION forming part of Letters Patent No. 439,636, dated November 4, 1890. Application filed February 14, 1890. Serial No. 340,459- (No model.)

To all whom it may concern:

Be it known that 1, CHARLES E. BUCK, of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Adjustable Shelves or Brackets, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawingsrepresentinglike parts.

This invention has for its object to construct a bracket or shelf which is vertically adjustable on its support to any desired height, may be turned into vertical position at any point on its support when not in use, and is also preferably detachable.

. In accordance with this invention't-he shelf is provided with a pivoted arm, on the end of which is secured or arranged a yielding knob, and the said arm is arranged on the shelf centrally and in a direction lengthwise the h lf, or at right angles to its supports. The shelf has two bearing portions or rests-one at each side of the yielding knob-which serve as shoulders or abutments, which support the shelf in a horizontal plane and which resist movement of it in a downward direction. A suitable shelf-support, having a guideway and slot for the yielding knob or enlarged'end or head and arm carrying it, is provided for the shelf, said support having side pieces, upon which the shoulders rest, or abutment-s of the shelf may bear when the latter lies in a horizontal plane.

Figure 1 shows in horizontal elevation an adjustable and detachable shelf and support therefor,e1nbodying this invention; Fig. 2, a side view of the shelf or support shown in Fig. 1, it being broken out to more fully and clearly show the means by which it is held in position; and Fig. 8, a top view of the shelf and its support shown in Fig. 2.

The shelf co is made narrow and of any suitable length and material, and is provided at its rear end, or that end adjacent to its support, with two shoulders, rests, or abutments b, one at each side. An. arm 0 is pivoted to the shelf a centrally by means of a pin 0, (see dotted lines,) said arm extending in a direction nearly parallel with the length of the shelf and at right angles to the shelf-support.

A yielding knob 0 or block, or it may be an enlarged end or head,is arranged on the end of the arm 0, it occupying aposition between the two shoulders, rests, or abutments b b.

The shelf-support consists of a frame constructed with parallel side pieces 01 d, and v with parallel face-plates d (1 the said faceplates and side plates being connected by projecting walls d", so that a vertical recess is formed. The frame or shelf-support is slotted vertically, as at e, and has at its upper end a hole e. The yielding knob or enlarged end 0 is passed through the hole 6, entering the vertical recess in the shelf-support, and when in such recess it may be moved up and down at will, the arm 0 following in the slot 6. \Vhen the shelf is brought to the right level, it is turned down into substantially a right-angle position with relation to the support, or into a horizontal plane, as shown in Fig. 2, when the two shoulders or abutments b will bear firmly against the side plates (1 d, and the shelf, by the conjoint action of the knob c and the said shoulders, rests; or abutments 1), acting on opposite sides of the shelfsupport, will hold the shelf firmly in position. The shelf may thus be secured at any desired point on the shelf-support, and by means of the hole e it is detachable.

I do not desire to limit my invention to the employment of a yielding knob, as it is obvious that it may be made rigid and some other part or portion of the shelf or support made yielding; and also, if desired, all the parts may be made rigid. The arm 0, being connected to the shelf a at a point some distance from the shelf support, serves as a means for holding up the shelf, while the shoulders, rests, or abutments b serve as braces to prevent downward'movement thereof. The shelf may be turned up into vertical position and held in such position by any suitable catch, if desired, when not in use. The slot 6 in the shelf-support and recess back of it constitutes a T-slot, in which the holding-arm 0 moves.

I claii 1. The vertically-adj ustable shelf a, having an arm 0 pivoted centrally to it, a knob on said arm, and two shoulders or abutments, as

I), combined with a shelf-support having a too vertical recess for the knob, the shoulders or abutments bearing against said support, substantially as described.

2. The vertically-adj ustable shelf (1, having an arm, as c, pivoted to it at a short distance from its point of attachment; or rear end, said arm having an enlarged end, and two abutments, as 11,011 said shelf, combined with a shelf-support having a vertical recess for the enlarged end,wherebyit maybe removed and the shelf detached, and a vertical slot for the arm, substantially as described.

3. The Vertically adjustable shelf and means, substantially as described, to support it from beneath, the arm 0, and the yielding knob 0 combined with a stationary shelfsupport for the shelf, upon which the latter slides, substantially as described.

L- The shelf-support having a slot, combined with a vertically-adjustable shelf hav-' ing an arm moving in the slot of the support, 

